<?php
class ModelCatalogProduct extends Model {

  /**
   *
   * Verifica se esiste il prodotto con quel modello e quella data
   *
   * @param string $model codice modello prodotto
   * @param string $date data in formato  yyyy-mm-dd
   *
   *
   */
  public function existProductByModelDate( $data )
  {
    $model = $this->db->escape($data['model']);
    $date  =  $this->db->escape($data['date_available']);

    $queryStr = "SELECT count(p.product_id) as c
              FROM   product p
              WHERE  p.model = '$model'
              AND    p.date_available = '$date'";

    $query = $this->db->query($queryStr);

    $count = $query->row['c'];

    return ($count > 0);
  }


  public function addProduct($data) {
    $this->db->query("INSERT INTO " . DB_PREFIX . "product SET model = '" . $this->db->escape($data['model']) . "', sku = '" . $this->db->escape($data['sku']) . "', upc = '" . $this->db->escape($data['upc']) . "', location = '" . $this->db->escape($data['location']) . "', quantity = '" . (int)$data['quantity'] . "', minimum = '" . (int)$data['minimum'] . "', subtract = '" . (int)$data['subtract'] . "', stock_status_id = '" . (int)$data['stock_status_id'] . "', date_available = '" . $this->db->escape($data['date_available']) . "', manufacturer_id = '" . (int)$data['manufacturer_id'] . "', shipping = '" . (int)$data['shipping'] . "', price = '" . (float)$data['price'] . "', points = '" . (int)$data['points'] . "', weight = '" . (float)$data['weight'] . "', weight_class_id = '" . (int)$data['weight_class_id'] . "', length = '" . (float)$data['length'] . "', width = '" . (float)$data['width'] . "', height = '" . (float)$data['height'] . "', length_class_id = '" . (int)$data['length_class_id'] . "', status = '" . (int)$data['status'] . "', tax_class_id = '" . $this->db->escape($data['tax_class_id']) . "', sort_order = '" . (int)$data['sort_order'] . "', date_added = NOW()");

    $product_id = $this->db->getLastId();

    if (isset($data['image'])) {
      $this->db->query("UPDATE " . DB_PREFIX . "product SET image = '" . $this->db->escape(html_entity_decode($data['image'], ENT_QUOTES, 'UTF-8')) . "' WHERE product_id = '" . (int)$product_id . "'");
    }

    foreach ($data['product_description'] as $language_id => $value) {
      $this->db->query("INSERT INTO " . DB_PREFIX . "product_description SET product_id = '" . (int)$product_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "'");
    }

    if (isset($data['product_store'])) {
      foreach ($data['product_store'] as $store_id) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_store SET product_id = '" . (int)$product_id . "', store_id = '" . (int)$store_id . "'");
      }
    }

    if (isset($data['product_attribute'])) {
      foreach ($data['product_attribute'] as $product_attribute) {
        if ($product_attribute['attribute_id']) {
          $this->db->query("DELETE FROM " . DB_PREFIX . "product_attribute WHERE product_id = '" . (int)$product_id . "' AND attribute_id = '" . (int)$product_attribute['attribute_id'] . "'");
          	
          foreach ($product_attribute['product_attribute_description'] as $language_id => $product_attribute_description) {
            $this->db->query("INSERT INTO " . DB_PREFIX . "product_attribute SET product_id = '" . (int)$product_id . "', attribute_id = '" . (int)$product_attribute['attribute_id'] . "', language_id = '" . (int)$language_id . "', text = '" .  $this->db->escape($product_attribute_description['text']) . "'");
          }
        }
      }
    }

    if (isset($data['product_option'])) {
      foreach ($data['product_option'] as $product_option) {
        if ($product_option['type'] == 'select' || $product_option['type'] == 'radio' || $product_option['type'] == 'checkbox' || $product_option['type'] == 'image') {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_option SET product_id = '" . (int)$product_id . "', option_id = '" . (int)$product_option['option_id'] . "', required = '" . (int)$product_option['required'] . "'");

          $product_option_id = $this->db->getLastId();

          if (isset($product_option['product_option_value'])) {
            foreach ($product_option['product_option_value'] as $product_option_value) {
              $this->db->query("INSERT INTO " . DB_PREFIX . "product_option_value SET product_option_id = '" . (int)$product_option_id . "', product_id = '" . (int)$product_id . "', option_id = '" . (int)$product_option['option_id'] . "', option_value_id = '" . (int)$product_option_value['option_value_id'] . "', quantity = '" . (int)$product_option_value['quantity'] . "', subtract = '" . (int)$product_option_value['subtract'] . "', price = '" . (float)$product_option_value['price'] . "', price_prefix = '" . $this->db->escape($product_option_value['price_prefix']) . "', points = '" . (int)$product_option_value['points'] . "', points_prefix = '" . $this->db->escape($product_option_value['points_prefix']) . "', weight = '" . (float)$product_option_value['weight'] . "', weight_prefix = '" . $this->db->escape($product_option_value['weight_prefix']) . "'");
            }
          }
        } else {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_option SET product_id = '" . (int)$product_id . "', option_id = '" . (int)$product_option['option_id'] . "', option_value = '" . $this->db->escape($product_option['option_value']) . "', required = '" . (int)$product_option['required'] . "'");
        }
      }
    }

    if (isset($data['product_discount'])) {
      foreach ($data['product_discount'] as $product_discount) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_discount SET product_id = '" . (int)$product_id . "', customer_group_id = '" . (int)$product_discount['customer_group_id'] . "', quantity = '" . (int)$product_discount['quantity'] . "', priority = '" . (int)$product_discount['priority'] . "', price = '" . (float)$product_discount['price'] . "', date_start = '" . $this->db->escape($product_discount['date_start']) . "', date_end = '" . $this->db->escape($product_discount['date_end']) . "'");
      }
    }

    if (isset($data['product_special'])) {
      foreach ($data['product_special'] as $product_special) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_special SET product_id = '" . (int)$product_id . "', customer_group_id = '" . (int)$product_special['customer_group_id'] . "', priority = '" . (int)$product_special['priority'] . "', price = '" . (float)$product_special['price'] . "', date_start = '" . $this->db->escape($product_special['date_start']) . "', date_end = '" . $this->db->escape($product_special['date_end']) . "'");
      }
    }

    if (isset($data['product_image'])) {
      foreach ($data['product_image'] as $product_image) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_image SET product_id = '" . (int)$product_id . "', image = '" . $this->db->escape(html_entity_decode($product_image['image'], ENT_QUOTES, 'UTF-8')) . "', sort_order = '" . (int)$product_image['sort_order'] . "'");
      }
    }

    if (isset($data['product_download'])) {
      foreach ($data['product_download'] as $download_id) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_download SET product_id = '" . (int)$product_id . "', download_id = '" . (int)$download_id . "'");
      }
    }

    if (isset($data['product_category'])) {
      foreach ($data['product_category'] as $category_id) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_category SET product_id = '" . (int)$product_id . "', category_id = '" . (int)$category_id . "'");
      }
    }

    if (isset($data['product_related'])) {
      foreach ($data['product_related'] as $related_id) {
        $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "' AND related_id = '" . (int)$related_id . "'");
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$product_id . "', related_id = '" . (int)$related_id . "'");
        $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$related_id . "' AND related_id = '" . (int)$product_id . "'");
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$related_id . "', related_id = '" . (int)$product_id . "'");
      }
    }

    if (isset($data['product_reward'])) {
      foreach ($data['product_reward'] as $customer_group_id => $product_reward) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_reward SET product_id = '" . (int)$product_id . "', customer_group_id = '" . (int)$customer_group_id . "', points = '" . (int)$product_reward['points'] . "'");
      }
    }

    if (isset($data['product_layout'])) {
      foreach ($data['product_layout'] as $store_id => $layout) {
        if ($layout['layout_id']) {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_layout SET product_id = '" . (int)$product_id . "', store_id = '" . (int)$store_id . "', layout_id = '" . (int)$layout['layout_id'] . "'");
        }
      }
    }

    foreach ($data['product_tag'] as $language_id => $value) {
      if ($value) {
        $tags = explode(',', $value);

        foreach ($tags as $tag) {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_tag SET product_id = '" . (int)$product_id . "', language_id = '" . (int)$language_id . "', tag = '" . $this->db->escape(trim($tag)) . "'");
        }
      }
    }

    if ($data['keyword']) {
      $this->db->query("INSERT INTO " . DB_PREFIX . "url_alias SET query = 'product_id=" . (int)$product_id . "', keyword = '" . $this->db->escape($data['keyword']) . "'");
    }

    $this->cache->delete('product');
  }

  public function editProduct($product_id, $data) {
    $this->db->query("UPDATE " . DB_PREFIX . "product SET model = '" . $this->db->escape($data['model']) . "', sku = '" . $this->db->escape($data['sku']) . "', upc = '" . $this->db->escape($data['upc']) . "', location = '" . $this->db->escape($data['location']) . "', quantity = '" . (int)$data['quantity'] . "', minimum = '" . (int)$data['minimum'] . "', subtract = '" . (int)$data['subtract'] . "', stock_status_id = '" . (int)$data['stock_status_id'] . "', date_available = '" . $this->db->escape($data['date_available']) . "', manufacturer_id = '" . (int)$data['manufacturer_id'] . "', shipping = '" . (int)$data['shipping'] . "', price = '" . (float)$data['price'] . "', points = '" . (int)$data['points'] . "', weight = '" . (float)$data['weight'] . "', weight_class_id = '" . (int)$data['weight_class_id'] . "', length = '" . (float)$data['length'] . "', width = '" . (float)$data['width'] . "', height = '" . (float)$data['height'] . "', length_class_id = '" . (int)$data['length_class_id'] . "', status = '" . (int)$data['status'] . "', tax_class_id = '" . $this->db->escape($data['tax_class_id']) . "', sort_order = '" . (int)$data['sort_order'] . "', date_modified = NOW() WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['image'])) {
      $this->db->query("UPDATE " . DB_PREFIX . "product SET image = '" . $this->db->escape(html_entity_decode($data['image'], ENT_QUOTES, 'UTF-8')) . "' WHERE product_id = '" . (int)$product_id . "'");
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_description WHERE product_id = '" . (int)$product_id . "'");

    foreach ($data['product_description'] as $language_id => $value) {
      $this->db->query("INSERT INTO " . DB_PREFIX . "product_description SET product_id = '" . (int)$product_id . "', language_id = '" . (int)$language_id . "', name = '" . $this->db->escape($value['name']) . "', meta_keyword = '" . $this->db->escape($value['meta_keyword']) . "', meta_description = '" . $this->db->escape($value['meta_description']) . "', description = '" . $this->db->escape($value['description']) . "'");
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_store WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_store'])) {
      foreach ($data['product_store'] as $store_id) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_store SET product_id = '" . (int)$product_id . "', store_id = '" . (int)$store_id . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_attribute WHERE product_id = '" . (int)$product_id . "'");

    if (!empty($data['product_attribute'])) {
      foreach ($data['product_attribute'] as $product_attribute) {
        if ($product_attribute['attribute_id']) {
          $this->db->query("DELETE FROM " . DB_PREFIX . "product_attribute WHERE product_id = '" . (int)$product_id . "' AND attribute_id = '" . (int)$product_attribute['attribute_id'] . "'");
          	
          foreach ($product_attribute['product_attribute_description'] as $language_id => $product_attribute_description) {
            $this->db->query("INSERT INTO " . DB_PREFIX . "product_attribute SET product_id = '" . (int)$product_id . "', attribute_id = '" . (int)$product_attribute['attribute_id'] . "', language_id = '" . (int)$language_id . "', text = '" .  $this->db->escape($product_attribute_description['text']) . "'");
          }
        }
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_option WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_option_value WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_option'])) {
      foreach ($data['product_option'] as $product_option) {
        if ($product_option['type'] == 'select' || $product_option['type'] == 'radio' || $product_option['type'] == 'checkbox' || $product_option['type'] == 'image') {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_option SET product_option_id = '" . (int)$product_option['product_option_id'] . "', product_id = '" . (int)$product_id . "', option_id = '" . (int)$product_option['option_id'] . "', required = '" . (int)$product_option['required'] . "'");

          $product_option_id = $this->db->getLastId();

          if (isset($product_option['product_option_value'])) {
            foreach ($product_option['product_option_value'] as $product_option_value) {
              $this->db->query("INSERT INTO " . DB_PREFIX . "product_option_value SET product_option_value_id = '" . (int)$product_option_value['product_option_value_id'] . "', product_option_id = '" . (int)$product_option_id . "', product_id = '" . (int)$product_id . "', option_id = '" . (int)$product_option['option_id'] . "', option_value_id = '" . (int)$product_option_value['option_value_id'] . "', quantity = '" . (int)$product_option_value['quantity'] . "', subtract = '" . (int)$product_option_value['subtract'] . "', price = '" . (float)$product_option_value['price'] . "', price_prefix = '" . $this->db->escape($product_option_value['price_prefix']) . "', points = '" . (int)$product_option_value['points'] . "', points_prefix = '" . $this->db->escape($product_option_value['points_prefix']) . "', weight = '" . (float)$product_option_value['weight'] . "', weight_prefix = '" . $this->db->escape($product_option_value['weight_prefix']) . "'");
            }
          }
        } else {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_option SET product_option_id = '" . (int)$product_option['product_option_id'] . "', product_id = '" . (int)$product_id . "', option_id = '" . (int)$product_option['option_id'] . "', option_value = '" . $this->db->escape($product_option['option_value']) . "', required = '" . (int)$product_option['required'] . "'");
        }
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_discount WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_discount'])) {
      foreach ($data['product_discount'] as $product_discount) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_discount SET product_id = '" . (int)$product_id . "', customer_group_id = '" . (int)$product_discount['customer_group_id'] . "', quantity = '" . (int)$product_discount['quantity'] . "', priority = '" . (int)$product_discount['priority'] . "', price = '" . (float)$product_discount['price'] . "', date_start = '" . $this->db->escape($product_discount['date_start']) . "', date_end = '" . $this->db->escape($product_discount['date_end']) . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_special WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_special'])) {
      foreach ($data['product_special'] as $product_special) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_special SET product_id = '" . (int)$product_id . "', customer_group_id = '" . (int)$product_special['customer_group_id'] . "', priority = '" . (int)$product_special['priority'] . "', price = '" . (float)$product_special['price'] . "', date_start = '" . $this->db->escape($product_special['date_start']) . "', date_end = '" . $this->db->escape($product_special['date_end']) . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_image WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_image'])) {
      foreach ($data['product_image'] as $product_image) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_image SET product_id = '" . (int)$product_id . "', image = '" . $this->db->escape(html_entity_decode($product_image['image'], ENT_QUOTES, 'UTF-8')) . "', sort_order = '" . (int)$product_image['sort_order'] . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_download WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_download'])) {
      foreach ($data['product_download'] as $download_id) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_download SET product_id = '" . (int)$product_id . "', download_id = '" . (int)$download_id . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_category'])) {
      foreach ($data['product_category'] as $category_id) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_category SET product_id = '" . (int)$product_id . "', category_id = '" . (int)$category_id . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE related_id = '" . (int)$product_id . "'");

    if (isset($data['product_related'])) {
      foreach ($data['product_related'] as $related_id) {
        $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "' AND related_id = '" . (int)$related_id . "'");
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$product_id . "', related_id = '" . (int)$related_id . "'");
        $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$related_id . "' AND related_id = '" . (int)$product_id . "'");
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_related SET product_id = '" . (int)$related_id . "', related_id = '" . (int)$product_id . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_reward WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_reward'])) {
      foreach ($data['product_reward'] as $customer_group_id => $value) {
        $this->db->query("INSERT INTO " . DB_PREFIX . "product_reward SET product_id = '" . (int)$product_id . "', customer_group_id = '" . (int)$customer_group_id . "', points = '" . (int)$value['points'] . "'");
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_layout WHERE product_id = '" . (int)$product_id . "'");

    if (isset($data['product_layout'])) {
      foreach ($data['product_layout'] as $store_id => $layout) {
        if ($layout['layout_id']) {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_to_layout SET product_id = '" . (int)$product_id . "', store_id = '" . (int)$store_id . "', layout_id = '" . (int)$layout['layout_id'] . "'");
        }
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "product_tag WHERE product_id = '" . (int)$product_id. "'");

    foreach ($data['product_tag'] as $language_id => $value) {
      if ($value) {
        $tags = explode(',', $value);
        	
        foreach ($tags as $tag) {
          $this->db->query("INSERT INTO " . DB_PREFIX . "product_tag SET product_id = '" . (int)$product_id . "', language_id = '" . (int)$language_id . "', tag = '" . $this->db->escape(trim($tag)) . "'");
        }
      }
    }

    $this->db->query("DELETE FROM " . DB_PREFIX . "url_alias WHERE query = 'product_id=" . (int)$product_id. "'");

    if ($data['keyword']) {
      $this->db->query("INSERT INTO " . DB_PREFIX . "url_alias SET query = 'product_id=" . (int)$product_id . "', keyword = '" . $this->db->escape($data['keyword']) . "'");
    }

    $this->cache->delete('product');
  }

  public function copyProduct($product_id) {
    return; // INIBITO
    $query = $this->db->query("SELECT DISTINCT * FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) WHERE p.product_id = '" . (int)$product_id . "' AND pd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

    if ($query->num_rows) {
      $data = array();
      	
      $data = $query->row;
      	
      $data['keyword'] = '';

      $data['status'] = '0';

      $data = array_merge($data, array('product_attribute' => $this->getProductAttributes($product_id)));
      $data = array_merge($data, array('product_description' => $this->getProductDescriptions($product_id)));
      $data = array_merge($data, array('product_discount' => $this->getProductDiscounts($product_id)));
      $data = array_merge($data, array('product_image' => $this->getProductImages($product_id)));
      $data = array_merge($data, array('product_option' => $this->getProductOptions($product_id)));
      $data = array_merge($data, array('product_related' => $this->getProductRelated($product_id)));
      $data = array_merge($data, array('product_reward' => $this->getProductRewards($product_id)));
      $data = array_merge($data, array('product_special' => $this->getProductSpecials($product_id)));
      $data = array_merge($data, array('product_tag' => $this->getProductTags($product_id)));
      $data = array_merge($data, array('product_category' => $this->getProductCategories($product_id)));
      $data = array_merge($data, array('product_download' => $this->getProductDownloads($product_id)));
      $data = array_merge($data, array('product_layout' => $this->getProductLayouts($product_id)));
      $data = array_merge($data, array('product_store' => $this->getProductStores($product_id)));
      	
      $this->addProduct($data);
    }
  }

  public function deleteProduct($product_id) {
    $this->db->query("DELETE FROM " . DB_PREFIX . "product WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_attribute WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_description WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_discount WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_image WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_option WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_option_value WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_related WHERE related_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_reward WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_special WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_tag WHERE product_id='" . (int)$product_id. "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_download WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_layout WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "product_to_store WHERE product_id = '" . (int)$product_id . "'");
    $this->db->query("DELETE FROM " . DB_PREFIX . "review WHERE product_id = '" . (int)$product_id . "'");

    $this->db->query("DELETE FROM " . DB_PREFIX . "url_alias WHERE query = 'product_id=" . (int)$product_id. "'");

    $this->cache->delete('product');
  }

  public function getProduct($product_id) {
    $query = $this->db->query("SELECT DISTINCT *, (SELECT keyword FROM " . DB_PREFIX . "url_alias WHERE query = 'product_id=" . (int)$product_id . "') AS keyword FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) WHERE p.product_id = '" . (int)$product_id . "' AND pd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

    return $query->row;
  }

  public function getProducts($data = array()) {
    if ($data) {
      $sql = "SELECT * FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id)";
      	
      if (!empty($data['filter_category_id'])) {
        $sql .= " LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (p.product_id = p2c.product_id)";
      }
      	
      $sql .= " WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "'";
      	
      if (!empty($data['filter_name'])) {
        $sql .= " AND LCASE(pd.name) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "%'";
      }

      if (!empty($data['filter_model'])) {
        $sql .= " AND LCASE(p.model) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_model'])) . "%'";
      }
      	
      if (!empty($data['filter_price'])) {
        $sql .= " AND p.price LIKE '" . $this->db->escape($data['filter_price']) . "%'";
      }
      	
      if (isset($data['filter_quantity']) && !is_null($data['filter_quantity'])) {
        $sql .= " AND p.quantity = '" . $this->db->escape($data['filter_quantity']) . "'";
      }
      	
      if (isset($data['filter_status']) && !is_null($data['filter_status'])) {
        $sql .= " AND p.status = '" . (int)$data['filter_status'] . "'";
      }
      	
      if (!empty($data['filter_category_id'])) {
        if (!empty($data['filter_sub_category'])) {
          $implode_data = array();
          	
          $implode_data[] = "category_id = '" . (int)$data['filter_category_id'] . "'";
          	
          $this->load->model('catalog/category');
          	
          $categories = $this->model_catalog_category->getCategories($data['filter_category_id']);
          	
          foreach ($categories as $category) {
            $implode_data[] = "p2c.category_id = '" . (int)$category['category_id'] . "'";
          }
          	
          $sql .= " AND (" . implode(' OR ', $implode_data) . ")";
        } else {
          $sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
        }
      }
      	
      $sql .= " GROUP BY p.product_id";

      $sort_data = array(
				'pd.name',
				'p.model',
				'p.price',
				'p.quantity',
				'p.status',
				'p.sort_order'
				);
					
				if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
				  $sql .= " ORDER BY " . $data['sort'];
				} else {
				  $sql .= " ORDER BY pd.name";
				}
					
				if (isset($data['order']) && ($data['order'] == 'DESC')) {
				  $sql .= " DESC";
				} else {
				  $sql .= " ASC";
				}

				if (isset($data['start']) || isset($data['limit'])) {
				  if ($data['start'] < 0) {
				    $data['start'] = 0;
				  }

				  if ($data['limit'] < 1) {
				    $data['limit'] = 20;
				  }
				  	
				  $sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
				}
					
				$query = $this->db->query($sql);

				return $query->rows;
    } else {
      $product_data = $this->cache->get('product.' . (int)$this->config->get('config_language_id'));

      if (!$product_data) {
        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' ORDER BY pd.name ASC");

        $product_data = $query->rows;
        	
        $this->cache->set('product.' . (int)$this->config->get('config_language_id'), $product_data);
      }

      return $product_data;
    }
  }

  public function getProductsByCategoryId($category_id) {
    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (p.product_id = p2c.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p2c.category_id = '" . (int)$category_id . "' ORDER BY pd.name ASC");

    return $query->rows;
  }

  public function getProductDescriptions($product_id) {
    $product_description_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_description WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_description_data[$result['language_id']] = array(
				'name'             => $result['name'],
				'description'      => $result['description'],
				'meta_keyword'     => $result['meta_keyword'],
				'meta_description' => $result['meta_description']
      );
    }

    return $product_description_data;
  }

  public function getProductAttributes($product_id) {
    $product_attribute_data = array();

    $product_attribute_query = $this->db->query("SELECT pa.attribute_id, ad.name FROM " . DB_PREFIX . "product_attribute pa LEFT JOIN " . DB_PREFIX . "attribute a ON (pa.attribute_id = a.attribute_id) LEFT JOIN " . DB_PREFIX . "attribute_description ad ON (a.attribute_id = ad.attribute_id) WHERE pa.product_id = '" . (int)$product_id . "' AND ad.language_id = '" . (int)$this->config->get('config_language_id') . "' GROUP BY pa.attribute_id");

    foreach ($product_attribute_query->rows as $product_attribute) {
      $product_attribute_description_data = array();
      	
      $product_attribute_description_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_attribute WHERE product_id = '" . (int)$product_id . "' AND attribute_id = '" . (int)$product_attribute['attribute_id'] . "'");
      	
      foreach ($product_attribute_description_query->rows as $product_attribute_description) {
        $product_attribute_description_data[$product_attribute_description['language_id']] = array('text' => $product_attribute_description['text']);
      }
      	
      $product_attribute_data[] = array(
				'attribute_id'                  => $product_attribute['attribute_id'],
				'name'                          => $product_attribute['name'],
				'product_attribute_description' => $product_attribute_description_data
      );
    }

    return $product_attribute_data;
  }

  public function getProductOptions($product_id) {
    $product_option_data = array();

    $product_option_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_option po LEFT JOIN `" . DB_PREFIX . "option` o ON (po.option_id = o.option_id) LEFT JOIN " . DB_PREFIX . "option_description od ON (o.option_id = od.option_id) WHERE po.product_id = '" . (int)$product_id . "' AND od.language_id = '" . (int)$this->config->get('config_language_id') . "' ORDER BY o.sort_order");

    foreach ($product_option_query->rows as $product_option) {
      if ($product_option['type'] == 'select' || $product_option['type'] == 'radio' || $product_option['type'] == 'checkbox' || $product_option['type'] == 'image') {
        $product_option_value_data = array();

        $product_option_value_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_option_value pov LEFT JOIN " . DB_PREFIX . "option_value ov ON (pov.option_value_id = ov.option_value_id) LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (ov.option_value_id = ovd.option_value_id) WHERE pov.product_option_id = '" . (int)$product_option['product_option_id'] . "' AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "' ORDER BY ov.sort_order");

        foreach ($product_option_value_query->rows as $product_option_value) {
          $product_option_value_data[] = array(
						'product_option_value_id' => $product_option_value['product_option_value_id'],
						'option_value_id'         => $product_option_value['option_value_id'],
						'name'                    => $product_option_value['name'],
						'image'                   => $product_option_value['image'],
						'quantity'                => $product_option_value['quantity'],
						'subtract'                => $product_option_value['subtract'],
						'price'                   => $product_option_value['price'],
						'price_prefix'            => $product_option_value['price_prefix'],
						'points'                  => $product_option_value['points'],
						'points_prefix'           => $product_option_value['points_prefix'],						
						'weight'                  => $product_option_value['weight'],
						'weight_prefix'           => $product_option_value['weight_prefix']					
          );
        }

        $product_option_data[] = array(
					'product_option_id'    => $product_option['product_option_id'],
					'option_id'            => $product_option['option_id'],
					'name'                 => $product_option['name'],
					'type'                 => $product_option['type'],
					'product_option_value' => $product_option_value_data,
					'required'             => $product_option['required']
        );
      } else {
        $product_option_data[] = array(
					'product_option_id' => $product_option['product_option_id'],
					'option_id'         => $product_option['option_id'],
					'name'              => $product_option['name'],
					'type'              => $product_option['type'],
					'option_value'      => $product_option['option_value'],
					'required'          => $product_option['required']
        );
      }
    }

    return $product_option_data;
  }

  public function getProductImages($product_id) {
    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_image WHERE product_id = '" . (int)$product_id . "'");

    return $query->rows;
  }

  public function getProductDiscounts($product_id) {
    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_discount WHERE product_id = '" . (int)$product_id . "' ORDER BY quantity, priority, price");

    return $query->rows;
  }

  public function getProductSpecials($product_id) {
    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_special WHERE product_id = '" . (int)$product_id . "' ORDER BY priority, price");

    return $query->rows;
  }

  public function getProductRewards($product_id) {
    $product_reward_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_reward WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_reward_data[$result['customer_group_id']] = array('points' => $result['points']);
    }

    return $product_reward_data;
  }

  public function getProductDownloads($product_id) {
    $product_download_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_to_download WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_download_data[] = $result['download_id'];
    }

    return $product_download_data;
  }

  public function getProductStores($product_id) {
    $product_store_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_to_store WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_store_data[] = $result['store_id'];
    }

    return $product_store_data;
  }

  public function getProductLayouts($product_id) {
    $product_layout_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_to_layout WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_layout_data[$result['store_id']] = $result['layout_id'];
    }

    return $product_layout_data;
  }

  public function getProductCategories($product_id) {
    $product_category_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_category_data[] = $result['category_id'];
    }

    return $product_category_data;
  }

  public function getProductRelated($product_id) {
    $product_related_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_related WHERE product_id = '" . (int)$product_id . "'");

    foreach ($query->rows as $result) {
      $product_related_data[] = $result['related_id'];
    }

    return $product_related_data;
  }

  public function getProductTags($product_id) {
    $product_tag_data = array();

    $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_tag WHERE product_id = '" . (int)$product_id . "'");

    $tag_data = array();

    foreach ($query->rows as $result) {
      $tag_data[$result['language_id']][] = $result['tag'];
    }

    foreach ($tag_data as $language => $tags) {
      $product_tag_data[$language] = implode(',', $tags);
    }

    return $product_tag_data;
  }

  public function getTotalProducts($data = array()) {
    $sql = "SELECT COUNT(DISTINCT p.product_id) AS total FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id)";

    if (!empty($data['filter_category_id'])) {
      $sql .= " LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (p.product_id = p2c.product_id)";
    }
    	
    $sql .= " WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "'";

    if (!empty($data['filter_name'])) {
      $sql .= " AND LCASE(pd.name) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "%'";
    }

    if (!empty($data['filter_model'])) {
      $sql .= " AND LCASE(p.model) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_model'])) . "%'";
    }

    if (!empty($data['filter_price'])) {
      $sql .= " AND p.price LIKE '" . $this->db->escape($data['filter_price']) . "%'";
    }

    if (isset($data['filter_quantity']) && !is_null($data['filter_quantity'])) {
      $sql .= " AND p.quantity = '" . $this->db->escape($data['filter_quantity']) . "'";
    }

    if (isset($data['filter_status']) && !is_null($data['filter_status'])) {
      $sql .= " AND p.status = '" . (int)$data['filter_status'] . "'";
    }

    if (!empty($data['filter_category_id'])) {
      if (!empty($data['filter_sub_category'])) {
        $implode_data = array();

        $implode_data[] = "p2c.category_id = '" . (int)$data['filter_category_id'] . "'";

        $this->load->model('catalog/category');

        $categories = $this->model_catalog_category->getCategories($data['filter_category_id']);

        foreach ($categories as $category) {
          $implode_data[] = "p2c.category_id = '" . (int)$category['category_id'] . "'";
        }

        $sql .= " AND (" . implode(' OR ', $implode_data) . ")";
      } else {
        $sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
      }
    }

    $query = $this->db->query($sql);

    return $query->row['total'];
  }

  public function getTotalProductsByTaxClassId($tax_class_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product WHERE tax_class_id = '" . (int)$tax_class_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByStockStatusId($stock_status_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product WHERE stock_status_id = '" . (int)$stock_status_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByWeightClassId($weight_class_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product WHERE weight_class_id = '" . (int)$weight_class_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByLengthClassId($length_class_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product WHERE length_class_id = '" . (int)$length_class_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByDownloadId($download_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product_to_download WHERE download_id = '" . (int)$download_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByManufacturerId($manufacturer_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product WHERE manufacturer_id = '" . (int)$manufacturer_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByAttributeId($attribute_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product_attribute WHERE attribute_id = '" . (int)$attribute_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByOptionId($option_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product_option WHERE option_id = '" . (int)$option_id . "'");

    return $query->row['total'];
  }

  public function getTotalProductsByLayoutId($layout_id) {
    $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "product_to_layout WHERE layout_id = '" . (int)$layout_id . "'");

    return $query->row['total'];
  }
}
?>